Supplier Page from Thermo Fisher Scientific for Silica gel, wide pore, 150 angstroms
4-Ethylresorcinol, 98% from Thermo Fisher Scientific
Epichlorohydrin, 99% from Thermo Fisher Scientific
Ethyl 2-hydroxyethyl sulfide, 98% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific